Summary
This document is a research report detailing the correlational evidence from evaluations of the Lexia Core5 Reading program. The objective is to establish the validity of in-program measures and demonstrate the program's effectiveness as a classroom assessment tool for reading ability. The report outlines the methodology for calculating correlations between Core5 progress measures and standardized test scores, emphasizing the importance of both effectiveness and efficacy research in understanding a program's impact. It presents findings from over 70 custom evaluations across more than 20 states, indicating high to medium correlations between student progress in Core5 and various interim and summative tests. The report also discusses the concept of validity in the context of classroom assessments, highlighting how Core5's measures provide ongoing information about students' reading abilities without the need for traditional testing. Overall, the document serves as a comprehensive analysis of the effectiveness of the Core5 program in real-world educational settings.
